VPLS
VPWS - Virtual Private Wire Service
L2VPN and L2Circuit falls under VPWS
VPLS: Virtual Private LAN Service
VPLS can be created using the same methods:
- BGP
- LDP
- FEC 129
3 methods of signaling a VPLS
BGP Signaled VPLS
extended-vlan-vpls
family vpls
instance-type vpls
set routing-instances <name> instance-type vpls
set routing-instances <name> interface <name>
set routing-instances <name> route-distinguosher 192.168.1.1:12345
set routing-instances <name> vrf-target target:64512:12345
set routing-instances <name> protocols vpls no-tunnel-services
set routing-instances <name> protocols vpls site <name> site-identifier X
set routing-instances <name> protocols vpls site <name> interface <name>
Depending on whether Tunnerl Services PIC hardware is present or not Junos created virtual interfaces to represent each pseudowire
lsi interfaces Label Switched Interfaces
vt Virtual Tunnel Interface
Use show vpls connections to verify
Route Distinguisher : Remote Site: Offset
show vpls mac-table instance <instance-name>
MAC addresses are learned with pseudowires as next-hops.
VPN Label = Label base + (Remote-site-identifier – Offset)
set routing-instances <name> protocols vpls label-block-size X
where X= 2,4,8,16
default value is 8.
AFI/SAFI : 25/65
Encapsulation : VPLS
LDP-Signaled VPLS
Enable LDP on lo0 interface
configure a vpls-id under protocols vpls
neighbors are explicitly configured in the instance (no autodiscovery)
set routing-instances <name> instance-type vpls
set routing-instances <name> interface <name>
set routing-instances <name> protocols vpls no-tunnel-services
set routing-instances <name> protocols vpls vpls-id 12345
set routing-instances <name> protocols vpls neighbor X.X.X.X
set routing-instances <name> protocols vpls neighbor Y.Y.Y.Y
LDP L2Circuit advertisements are identical to LDP VPLS (same FEC type 128)
FEC 129 VPLS
FEC 129 VPLS is very similar to FEC 129 pseudowires.
No need to explicitly configure SAII/ TAII
They are automatically generated (numbers are based on the local and remote PE IP addresses)
set protocols bgp group <group-name> family l2vpn auto-discovery-only
set routing-instances <name> instance-type vpls
set routing-instances <name> interface <name>
set routing-instances <name> route-distinguosher 192.168.1.1:12345
set routing-instances <name> l2vpn-id l2vpn-id:64512:12345
set routing-instances <name> vrf-target target:64512:12345
set routing-instances <name> protocols vpls no-tunnel-services
FEC 129 prefixes have this format: route distinguisher : Source ID (SAII)
SAII is the remote PE’s IP address
